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Old 11-26-2014, 05:17 PM
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funola funola is offline
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Join Date: May 2005
Location: NYC
Posts: 8,113
Originally Posted by steamboatsykes View Post
Yes, perhaps. I had to force the metal part through the coil, for both of them.

I'll cut one of the replacement open and take a look as well. It would be interesting to find a flow diagram for the heating system. Perhaps it would make more sense then.
Something is very wrong if you had to force the "iron core" in.

Here's a link to a coolant flow diagram though it does not show the monovalve or aux water pump but you can pencil that in yourself by looking at your hoses. The flow (I believe) is from the heater core to the monovalve, down to the aux water pump, then back into the engine.
85 300D turbo pristine w 157k when purchased 161K now
83 300 D turbo 297K runs great. SOLD!
83 240D 4 spd manual- parted out then junked
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